@charset "UTF-8";
/* -----------------------------------------------------------
reset
----------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
}

html {
    overflow-y: scroll;
}

div, h1, h2, h3, h4, h5, h6, p, dl, dt, dd, ol, ul, li, form, input, textarea, button, table, tr, th, td, article, aside, footer, header, hgroup, nav, section, a, span, abbr, :before, :after {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -o-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}

body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
    margin: 0;
    padding: 0;
}

address, caption, cite, code, dfn, em, th, var {
    font-style: normal;
    font-weight: normal;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

q:before, q:after {
    content: "";
}

object,
embed {
    vertical-align: top;
}

hr, legend {
    display: none;
    border: none;
}

abbr, acronym, fieldset {
    border: 0;
}

tr, th, td, caption {
    vertical-align: top;
    font-style: normal;
    font-weight: normal;
    text-align: left;
}

body.fixed {
    position: fixed;
    width: 100%;
    left: 0;
}

footer a:link {
    color: inherit;
}

button {
    padding: 0;
    background-color: transparent;
    border: none;
    appearance: none;
    -moz-appearance: none;
    -webkit-appearance: none;
    outline: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: inherit;
    color: inherit;
}


@media screen and (min-width: 768px) {
    .only-sp {
        display: none !important;
    }
}
@media screen and (max-width: 767px) {
    .only-pc {
        display: none !important;
    }
}
.youtube-wrapper iframe {
    border: 0;
}

/* スクロール演出
----------------------------------------*/
.scroll-in.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.215, 0.61, 0.355, 1), transform 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.scroll-in.fade-in.appeared {
    opacity: 1;
    transform: translate(0, 0);
    transition-delay: 0s;
}
@media screen and (min-width: 768px) {
    .scroll-in.fade-in-only-pc {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.8s cubic-bezier(0.215, 0.61, 0.355, 1), transform 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    .scroll-in.fade-in-only-pc.appeared {
        opacity: 1;
        transform: translate(0, 0);
        transition-delay: 0s;
    }
}

/* section inner
----------------------------------------*/
@media screen and (min-width: 768px) {
    .l-section-inner {
        width: 1200px;
        margin: auto;
    }
}
@media screen and (max-width: 767px) {
    .l-section-inner {
        width: 89.0666666667vw;
        margin-left: 5.3333333333vw;
    }
}

/* footer
----------------------------------------*/
.l-footer {
    background-color: #ddf1f3;
}
.l-footer img {
    width: 100%;
    height: auto;
    vertical-align: top;
    line-height: 1;
}
@media screen and (min-width: 768px) {
    .l-footer img {
        image-rendering: -webkit-optimize-contrast;
    }
}

.l-footer .l-footer__inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}
@media screen and (min-width: 768px) {
    .l-footer .l-footer__inner {
        max-width: 1264px;
        padding-top: 80px;
        padding-bottom: 30px;
        padding-left: 32px;
        padding-right: 32px;
        margin: auto;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .l-footer__inner {
        padding-top: 13.0666666667vw;
        padding-bottom: 8vw;
    }
}
.l-footer .logo-yamaha-music-foundation {
    display: block;
    transition: opacity 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
@media screen and (min-width: 768px) {
    .l-footer .logo-yamaha-music-foundation {
        width: 250px;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .logo-yamaha-music-foundation {
        width: 50.6666666667vw;
        margin-left: -5.3333333333vw;
    }
}
.l-footer .logo-yamaha-music-foundation:focus-visible {
    opacity: 0.8;
}
@media (hover: hover) and (pointer: fine) {
    .l-footer .logo-yamaha-music-foundation:hover {
        opacity: 0.8;
    }
}
@media screen and (min-width: 768px) {
    .l-footer .c-sns-box {
        margin-top: 60px;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .c-sns-box {
        margin-top: 8vw;
    }
}
@media screen and (min-width: 768px) {
    .l-footer .c-sns-box + .c-sns-box {
        margin-top: 20px;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .c-sns-box + .c-sns-box {
        margin-top: 5.3333333333vw;
    }
}
.l-footer .link-list {
    display: flex;
    justify-content: center;
    align-items: center;
}
@media screen and (min-width: 768px) {
    .l-footer .link-list {
        margin-top: 60px;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .link-list {
        margin-top: 13.3333333333vw;
        border-right: 1px solid #2f2725;
    }
}
.l-footer .link-list li {
    border-left: 1px solid #2f2725;
}
@media screen and (min-width: 768px) {
    .l-footer .link-list li {
        padding: 0 20px;

    }
}
@media screen and (max-width: 767px) {
    .l-footer .link-list li {
        padding: 0 7.2vw;
        border-left: 1px solid #2f2725;
    }
}
.l-footer .link-list li:last-child {
    border-right: 1px solid #2f2725;
}
.l-footer .link-list li a {
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
@media screen and (min-width: 768px) {
    .l-footer .link-list li a {
        font-size: 0.75rem;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .link-list li a {
        font-size: 12px;
        font-size: 3.2vw;
    }
}
.l-footer .link-list li a:focus-visible {
    border-color: #707070;
}
@media (hover: hover) and (pointer: fine) {
    .l-footer .link-list li a:hover {
        border-color: #707070;
    }
}
.l-footer .copyright {
    color: #4b1e78;
}
@media screen and (min-width: 768px) {
    .l-footer .copyright {
        margin-top: 30px;
        font-size: 0.6875rem;
    }
}
@media screen and (max-width: 767px) {
    .l-footer .copyright {
        margin-top: 16vw;
        font-size: 11px;
        font-size: 2.9333333333vw;
    }
}
/* sns box
----------------------------------------*/
.c-sns-box {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
}
@media screen and (min-width: 768px) {
    .c-sns-box {
        border-radius: 9999px;
        gap: 22px;
        padding: 14px 29px 13px;
        box-shadow: 0px 0px 6px rgba(0, 0, 0, 0.16);
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box {
        width: 85.3333333333vw;
        border-radius: 5.3333333333vw;
        flex-wrap: wrap;
        gap: 6.9333333333vw;
        padding: 5.8666666667vw 0 6.4vw;
        box-shadow: 0px 0px 1.6vw rgba(0, 0, 0, 0.16);
    }
}
.c-sns-box .c-sns-box__head {
    border-right: 1px solid rgba(112, 112, 112, 0.2);
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__head {
        padding: 0 30px 0 9px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__head {
        margin-left: -3.4666666667vw;
        margin-top: 3.2vw;
        margin-bottom: 3.2vw;
        padding-right: 4.8vw;
    }
}
.c-sns-box .c-sns-box__head a {
    transition: opacity 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.c-sns-box .c-sns-box__head a:focus-visible {
    opacity: 0.8;
}
@media (hover: hover) and (pointer: fine) {
    .c-sns-box .c-sns-box__head a:hover {
        opacity: 0.8;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__head + .c-sns-box__list {
        width: auto;
        transform: translateX(1.0666666667vw);
    }
}
.c-sns-box .logo-yamaha-music-lesson {
    display: block;
}
@media screen and (min-width: 768px) {
    .c-sns-box .logo-yamaha-music-lesson {
        width: 74px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .logo-yamaha-music-lesson {
        width: 17.8666666667vw;
    }
}
.c-sns-box .c-sns-box__list {
    display: flex;
    justify-content: center;
    align-items: center;
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list {
        gap: 22px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list {
        width: 100%;
        flex-wrap: wrap;
        gap: 6vw;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list:last-child {
        gap: 8.2666666667vw;
    }
}
.c-sns-box .c-sns-box__list li a {
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a {
        font-size: 14px;
        gap: 8px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a {
        font-size: 14px;
        font-size: 3.6vw;
        gap: 2.1333333333vw;
    }
}
.c-sns-box .c-sns-box__list li a span {
    transition: opacity 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.c-sns-box .c-sns-box__list li a:focus-visible span {
    opacity: 0.7;
}
@media (hover: hover) and (pointer: fine) {
    .c-sns-box .c-sns-box__list li a:hover span {
        opacity: 0.7;
    }
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a.sns-line span {
        width: 38px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a.sns-line span {
        width: 9.25vw;
    }
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a.sns-x span {
        width: 38px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a.sns-x span {
        width: 8.5vw;
    }
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a.sns-youtube span {
        width: 40px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a.sns-youtube span {
        width: 9.25vw;
    }
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a.sns-facebook span {
        width: 38px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a.sns-facebook span {
        width: 9.25vw;
    }
}
@media screen and (min-width: 768px) {
    .c-sns-box .c-sns-box__list li a.sns-instagram span {
        width: 38px;
    }
}
@media screen and (max-width: 767px) {
    .c-sns-box .c-sns-box__list li a.sns-instagram span {
        width: 9.25vw;
    }
}

/* pagetop button
----------------------------------------*/
.c-pagetop-btn {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: #581f73;
    transition: background-color 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
@media screen and (min-width: 768px) {
    .c-pagetop-btn {
        width: 70px;
        height: 70px;
        right: 30px;
        top: -55px;
        filter: drop-shadow(0px 0px 6px rgba(0, 0, 0, 0.16));
    }
}
@media screen and (min-width: 1536px) {
    .c-pagetop-btn {
        right: -90px;
    }
}
@media screen and (max-width: 767px) {
    .c-pagetop-btn {
        width: 16vw;
        height: 16vw;
        right: 4vw;
        top: -6vw;
        filter: drop-shadow(0px 0px 1.6vw rgba(0, 0, 0, 0.16));
    }
}
.c-pagetop-btn:focus-visible {
    background-color: #8B51AD;
}
@media (hover: hover) and (pointer: fine) {
    .c-pagetop-btn:hover {
        background-color: #8B51AD;
    }
}
@media screen and (min-width: 768px) {
    .c-pagetop-btn span {
        width: 20px;
        transform: translateY(3px);
    }
}
@media screen and (max-width: 767px) {
    .c-pagetop-btn span {
        width: 4.5333333333vw;
        transform: translateY(0.5333333333vw);
    }
}